This is a Today I Learned thread. I hope to update it as frequently as I can.

#TIL đŸ€
https://twitter.com/favourcodes/status/1296187832315392000
#TIL I learnt about Phatic Expressions.

They are expressions that are known and understood by people who use them, even though they have no literal meaning at all. Just hat thing becomes difficult when ..
across cultures and age groups, where they can be totally confusing or even seem rude because of their language differences.

Fillers like "okay", "alright" etc can be mistaken for denoting agreement rather than a "go on, I am listening".
#TIL That Seagate in 2018 debut a multi actuator tech in 2018. 😼 How did I miss this?

A typical hard drive has a Read and write head with which it uses to perform IO operations on the disk platter. Now that head is attached to an actuator that moves it.
Normally when you make an IO operation you can only access one thing at a time but with multi actuators, you can make multiple RW at the same time. That means the IOPS(IO per seconds) performance is multiplied, the latency is reduced and great drive ultilization.
#TIL: Mocha Test types
1. Exclusive tests - Adding .only runs the test function(s) with the test keyword.
2. Inclusive tests - Adding .skip to the it test function skips that test from running.
3. Pending tests - Creating a test function without a callback.
#TIL Mocha Types of Timeouts

1. Suite Level - in the describe suite scope.
2. Test Level - inside an "it" test function scope
3. Hook Level - inside any of the hooks provided by Mocha.
#TIL
1. Wi-Fi doesn't mean Wireless Fidelity. That is an abbrevation is a misconception. IEEE's fault. 👀

2. The invention of Wi-Fi originated from a failed experiment to detect exploding mini black holes the size of an atomic particle.

3. Wi-Fi is an Australian invention.
*That it is an.
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